SinoXivQuantum oscillation of electronic nonreciprocity in orbital symmetry broken 1T-TiSe₂
Abstract
Nonreciprocal transport offers new avenues for probing chiral properties in condensed matter systems. However, the interplay between electron quantum interference and electronic magnetochiral anisotropy, a nonreciprocal resistance in chiral systems, remains largely unexplored. Here, we report the observation of magnetoresistance oscillation embedded within a nonreciprocal transport signal. Electrically tunable, B-periodic oscillation in the second-harmonic voltage is discovered in the out-of-plane magnetoresistance in 1T-TiSe₂ thin flakes. We attribute this oscillation to the Altshuler-Aronov-Spivak (AAS) interference of surface states confined to the chiral domain walls of 1T-TiSe₂. Analysis using the AAS model reveals effective cross-sectional areas of chiral domains ranging from 1180 to 1880 nm². Our work establishes a novel method for probing surface states in the presence of conductive bulk states.
Citation Information
@article{jianhaochen2026,
title={Quantum oscillation of electronic nonreciprocity in orbital symmetry broken 1T-TiSe₂},
author={Jianhao Chen and Runjie Zheng and Xinyu Kang and Jin Cao and Qingzheng Qiu and Mantang Chen and Ning Ma and Yuanjun Song and Cong Xiao and Shengyuan Yang and Yingying Peng and X. C. Xie and Chuanwu Cao},
journal={Nature Portfolio},
year={2026},
doi={https://doi.org/10.21203/rs.3.rs-9177747/v1}
}
